Attachment for type-writers.



o. J. SWAIM. ATTACHMENT FOR TYPE WRITERS.

APPLICATION rILnD JArmz, mz. A 4 l ,wmu y 4 Pat-,enten Aug. 4, 1m

I] SHBETB-BHEET 1.

c. J. SWMM. ATTACHMENT rox TYPE wnnns. `A1=1=L1I1Mmf1i funn umm, 191g.

Pagen@ Aug. 4, 1914 f fanHnnTeksHnnT 2y MWh/wy.

that the arms 22 serve merely to move the paperroll simultaneously with the movementbf the carriage. 'ln order to prevent the roll 25 from turning too freely and pro- 55 d ucing a slackness of paper in the machine a drag bar 27 is provided, the ends of which engage in slots 28 formed in the supports 23. This drag is pressed continually against the paper by means of spiral springs 29 'lo which are tensioned between the support-s and the upper ends of standards 30 attached tothe drag, as the paper roll is used and diminishes in size. The drag drops down in the slots 28 and practically constant pres- 15 sure is maintained on the paper by means of the springs 29. While 'this particular struc- 4 and is provided at its rear extremity withone or. more ink ribbon spools 34 having a ao small ratchet toothed wheel ixed thereto.

A. pawl Solis pivoted to the frame and enl gages the teeth of the wheel 35 so that the spool may l,normally be revolved in one direction only. A small operating crank 37 a5 `is provided for the spool. lt will be under- Stood 'that the frames 31 at each end of the platen are exactly similar and 'that each frame carries one or By actuating either of the cranks 37, conao trolling the wheels 35 at opposite ends of the machine, the winding' of the ink-ribbon may be tensioned to any desired degree. The ink ribbons-38 are shifted by lifting one of the pawls 36 and turning the prank 37 o5 at the opposite end oi the carriage. The number of 'nk ribbons used depends entirely upon the number of copies which it is desired to make. In the drawings only two ribbons are shown wound on a single spool,

5o but it may be preferred to wind only one ribbon onv each spool. The ribbon guide 39 is attached to each frame 31 in line with the ribbon. spool, said guide sloping down to approximately the level of the printing 6o point. The lower end of the guide is t'o-lded under on itself.4 the fold being at an angle o't approximately 450. lt will thus be seen that the ribbons 38 passing down through the guide will be turned through an angle of 90o, c., lfrom vertical to horizontal movement. the ribbons being maintained in stantially vertical. plane.` .-ln order to the cent the iold indi more ribbon spools.

bons pass from the spool at one end ot the machine, through the guide, across the front of the platen in line with theprinting point. and through the second guide to the spool at the opposite vend of the machine. The forward extremity of each frame 31 is provided with a. downwardly projecting arm 41 having a plurality of vertical slots 42 formed therein one above the other.

The movable frame 32 is substantially L shaped the long arm being vertical and provided with a plurality of screws 43 which operate through the slots 42 of the fixed frame and hold the movable 'frame in position. The shorter arm of the movable iframe eXtends rearwardly. The lower enH tremities of the mpvable frame 32 are con- "nected by a bar ortidler roll 44, and again near the top by a second bar or roll 45. The cooperating discharge rolls 4G and 47 are mounted between the frames 32 above the roll 45. The fronti' roll ,46 is journaled di rectly in the plate 32 and is provided atv one end with a pinion 487 which meshes with a suitable larger gear 4) journaled on the right hand plate 32 and provided with an operating crank 50. The back roll 47 journaled in blocks 51 which slide forwardly or rearwardly in slots 52 formed in the plates `32. These' blocks are normally held at the forward ends of theslots 52 so that the rolls 46 and 47 engage by which are mounted insuitable housings :i4 attached to the plates 32. The compression or load of the springs is rendered adjustable by means of screws against which the rear ends of the springs abut. To open the discharge rolls for convenience in placing paper in the machine. a small cam 56 is pivvotedon the spindl'obf the roll 46 at each end thereof and engage the blocks 51 carrying `the roll 47 so as it vforce the same rearwardly.

A -bar 57 is attached at each end to the links 18 carrying the pressure roll 17. The paper ribbon unwinding from the roll 25 passes over the bar 57 and extends upwardly between the plat'en'and all the ink ribbons and around the roll 45. The paper then passes down between the two ribbons S8and e around the'bar 44at the bottom of the movable tramc. After passing around the bar 44. the paper passes upwardly a second timev and lies betweenfthe regular typewriter ribbon 58 a nd the outer of the two ribbons 38. The paper then passes out of the machine between the discharge rolls and 47. lit will be noted that all the rolls and bars over which the paper passes, with the exception ot the lharv 57, are carried by the movable frame 32. When a. ngle lineV has been writ#l ten, this trame is moved upwardly and can ries the various layers ori-paper upwardly without causing any relative movement between the layers. lit is obvious that it such lib springs 53 ile iid@

carbon paper place of using the lever 2l to return the carringe and rotate the platen, the operator uses the lever '76 at the right hand end of the machine. This lever rotates the platen one space as previously described so that the summary statement is carried forwardone space' by the platen, but at the same time the latches 68 are withdrawn so that the entire frame 32 drops to its original position. The three connected copies of the bill are now ejected from the machine by turning-the crank 50. Each of the bills thus made comprises the original and one or more copies, all ot which are attached so that there is no danger of loss or confusion. No time is. lostv in inserting several sheets of paper for cach invoice, nor in separating from printed copies of .the invoice. 'lhe lever 76, whenoperated on the completion of an invoice, moves the platen and consequently the summary one line for ward and simultaneous-:ly returns the frame 2&2 to its original positiomready for the commencement of a fresh bill. After a bill has been ejected fromthe machine it is torn olf against the knife 83.

lt is obvious that the number of'copies made may be increased by increasing the number of lavora ot' paper and consequently the hars` over which the paper passes, and 'also coi-respondonly increasing the number of ribbons.

.i number may be made in of changes and modifications' the` structure without departing from thiI broad idea of passing an endless ribbon of paper np and down in front of the platen of a typewriter, and inter-posing ink ribbons between the layers o1 such paper,

llaving thus-described my invention, what l claim is i l. ln a typewriter, a platen, means for feeding' a strip of paper hack and forth in spaced apart layers or folds in front of thil platen, and` means for feeding ink ribbons between the several layers of the paper.

2. ln a typewriter.I a platen, means for feeding a strip `of paper back and forth in spacezIl-apart layers nr folds in front of the platen,- 'and means for shifting; all ofsaid layers of paper, l

3. ln a typewriter, a paten, means for feeding a strip of paper ack and forth in spaced apart layersor folds in front of the platen, and means for simultaneously .feeding a second sheet of paper.

i fl. In a typewriter, a typewriter carriage, a platen, means for feeding a strip of paper back and forth inepaced apart layers or folds in front of the platen, means forsi mnltaneonsly feeding a second sheet of releasing said locking i nal position :incenso paper, shifting mechanism for moving all of said connected folds and means for simultaneously shiftingsaid second sheet.

5. ln a typewriter, the combination with the typewriter carriage and a platen, ofl

means mounted. on the carriage for feedin ay ribbon of paper back and forth in space apart layers or folds in front of the platen, means controlled by the platen rotating mechanism for shifting said paper feeding device, and means for automatically lockingthe paper feeding device in such shifted position.

6. ln a typewriter,

the typewriter carriage and a platen, of

v means mounted on the carriage for feedingv a ribbon of paper back and forth in spacedapart layers or folds in front of the platen,

means controlled by the platen rotating `:mechanism for shifting said paper feeding device, means for automatically lockingthe paper feeding device in such shifted position, and a manually operated device for vmeans and simulta-- neously rotating the platen.

7. ln a typewriter, the combination with 'the typewriter carriage, a platen line-s' acing mechanism, ofmechanism mounte on said carriage and arranged to feed a ribbon of paper hack and forth in front of th' platen, means operated by the line-spacing mechanism for moving the' paper feeding device in one direction at each shift of the platen, means for locking the feeding device after each movement, a device for returning the paper feeding device to its origiand simultaneouslyA rotating the platen, and rolls for ejecting the paper ribbon from the feeding device. l

8. ln a typewriter, the combination with a typewriter carriage and platen, of a paper roll holder connected to the carriage, a track supporting said paper roll holder, means mounted on the carriage for feeding paper from the roll back and 4forth in front of the platen, means for raising said paper feedingr means similltaneonsly with the rotating of the platen, latches arranged ajo lock said paper feeding means at each step of its rise, ay cam arranged to Withdraw all of said latches whereby the-paper feeding means will return to lts original position, and a cam operatn shaft arranged to ro-z tate the platen simu taneously with the return of the paper feeding means. y

9. ln a typewriter, the combination with the typewriter carriage and platen, of a paper roll holder connected to and arranged to move with the typ writer carriagjeyasupporting track for said payer roll holder, a framework rigidly mounted on the carriage, a second framework slidably mounted on said rigid framework, rollers in said second framework arranged to feed paperback and forth in front of .the platem'ri loon feeding;

the combination with Y mechannm mounted on th s tto'nary a latch mechanism cooperating with the framework arranged t6 fd ink' 'ribf'is ini; other' of said lavorov 10 termediate the loyers' of pei irof l In Witness whereof I have hereunto set tho .platom a shaft jorriil iiimy hand in the presence of two Witnesses. frame work, levers fixed to' skicl 'slff @iid y CECIL J. SWAIM. coneoted at one end tothe movable fre`= Wtne'sftl work, a. connection between one of said le-v STUART R. W ALLEN,

vers and the platen rotating mechanism, and G. M. Mmmm. 

